I painted my gunite pool this morning with zeron epoxy and its raining four hours later will it be o.k.?

It's good paint. If you did the proper wait time between first mixing the two parts and then doing the actual paint job and the conditions were fairly warm ( over 68 F) you should actually be ok. I've seen that stuff set well in 2 hours on a hot day with a little wind. The big thing here that may be an issue, will be the gas off in the paint around the hopper. It may have completely gassed off and there's nothing to worry about other than a scum line which can usually be brushed off when the pool is filled. If you have any doubt at all though, about how well the paint set, you can always wet/dry shop vac out that bit of water in the hopper and paint the area that was submerged. Have a look at the slope as well while you're at it to see if the rain run off into the hopper left any streaks. It may have...it may not have. I dunno how much rain you had and your other weather conditions. The gas off I mention is part of the paint's chemical set up process. If you see bubbles in the paint anywhere..it gassed and was trapped by the water in the hopper. It hadn't properly set up at the time of the rainfall.


If you painted smart, you should have started in the hopper and worked your way out of the deep end. That will actually give that paint in that area an hour head start on setting up on average so if it started raining 4 hours after finishing that paint that's now submerged will have had at least 5 hours dry time and will likely be ok. It's all temp and wind dependent though.


I know it's expensive paint and it sucks to have to open up a tin costing almost a hundred bucks for a small area but you may be forced to do it if you got bubbling. Not doing it while you have the opportunity will cost you far more in the long run.


Normally a contractor won't do a paint job unless they have a clear weather guarantee of a day. Just leaves room for error.